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Amazon WebService Certification Practice Questions Total 354 Lifetime Access($55/2500INR)

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Hadoop Developer Certification 335 Practice Questions(Just $55/2500INR)

Hadoop Admin Certification 307 Practice Questions(Just $55/2500INR)

Hadoop HBase Certification 214 Practice Questions(Just $55/2500INR)


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Provisioned IOPS Storage Costs

Because Provisioned IOPS storage reserves resources for your use, you are charged for the resources whether or not you use them in a given month. When you use Provisioned IOPS storage, you are not charged the monthly Amazon RDS I/O charge. If you prefer to pay only for I/O that you consume, a DB instance that uses standard storage may be a better choice.


PUT Bucket notification


This implementation of the PUT operation uses the notification subresource to enable notifications of specified events for a bucket. Currently, the s3:ReducedRedundancyLostObject event is the only event supported for notifications. The s3:ReducedRedundancyLostObject event is triggered when Amazon S3 detects that it has lost all replicas of an object and can no longer service requests for that object.


If the bucket owner and Amazon SNS topic owner are the same, the bucket owner has permission to publish notifications to the topic by default. Otherwise, the owner of the topic must create a policy to enable the bucket owner to publish to the topic. For more information about creating this policy, go to Example Cases for Amazon SNS Access Control.


By default, only the bucket owner can configure notifications on a bucket. However, bucket owners can use a bucket policy to grant permission to other users to set this configuration with s3:PutBucketNotification permission.


After you call the PUT operation to configure notifications on a bucket, Amazon S3 publishes a test notification to ensure that the topic exists and that the bucket owner has permission to publish to the specified topic. If the notification is successfully published to the SNS topic, the PUT operation updates the bucket configuration and returns the 200 OK response with a x-amz-sns-test-message-id header containing the message ID of the test notification sent to topic.


To turn off notifications on a bucket, you specify an empty NotificationConfiguration element in your request

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